Answer:
D. organ systems
Explanation:
Organs and tissues that perform the same function are called organ systems
Well, we can rule out diffusion and osmosis because these are passive processes, so we're left with A and C. I'd say A, because the energy is used in muscle contraction.
You should reask this question and put a picture so that we can understand it better :)
Answer:
DNA codes for RNA which codes for proteins... so A
if i could get brainliest that would be great :)
